I don't believe the phone votes were genuine either. My comment was removed [before it had appeared] on the BGT forum, when I said much the same thing! Proof enough for me.
When I tried to vote in one of the semis, the one and only time i have EVER phone voted, the line was constantly engaged, which made me think that particular act was well on the way to winning the heat, but - No.
We live and learn.
I would like to see the numbers of votes though. If the TV company has nothing to hide, why not publish the results?